List to Comma Separated
Turn a line-by-line list into a single comma-separated line (safely quoted).
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Paste a list with one item per line and get a single comma-separated line, with items containing commas automatically quoted. It is handy for SQL IN (...) clauses, spreadsheet cells and config values. Everything runs in your browser.
Clean up your list first with Remove Duplicate Lines or Remove Empty Lines.
Frequently asked questions
How do I turn a list into a comma-separated line?
Paste your items one per line and click convert; the tool joins them with commas, quoting any that contain commas.
What is this useful for?
Building SQL IN (...) clauses, filling a spreadsheet cell, or creating config values from a vertical list.
Does it remove blanks and duplicates?
It skips empty lines. To remove duplicates first, use the Remove Duplicate Lines tool.
Is my data uploaded?
No, it is processed entirely in your browser.